Using the example of exercise, there are a million recommendations you will get on not just how, but whether to do the pull-up or a push-up or jumping jax. If your goal is to maximize general health then you monitor your heart rate, breathing rate and duration and quietly ignore those people and their absurd arguments to get to the top of some advice pyramid.

In meditation you also need to ignore your mind imitating those people which is easier if you start by not reading all their opinions. If you really want to know how you are doing it is increasingly practical for anyone to buy an EEG.